145499525136 has 405 divisors, whose sum is σ = 502020661311. Its totient is φ = 39218546304.

The previous prime is 145499525113. The next prime is 145499525159. The reversal of 145499525136 is 631525994541.

It is a happy number.

The square root of 145499525136 is 381444.

It is a perfect power (a square), and thus also a powerful number.

145499525136 is a `hidden beast` number, since 1 + 4 + 549 + 95 + 2 + 5 + 1 + 3 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (145499525113) and next prime (145499525159).

It is a super-2 number, since 2×145499525136² (a number of 23 digits) contains 22 as substring.

Its product of digits (5832000) is a multiple of the sum of its prime divisors (270).

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 608784505 + ... + 608784743.

Almost surely, 2^145499525136 is an apocalyptic number.

145499525136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

145499525136 is the 381444-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145499525136

145499525136 is an abundant number, since it is smaller than the sum of its proper divisors (356521136175).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145499525136 is a wasteful number, since it uses less digits than its factorization.

145499525136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544 (or 270 counting only the distinct ones).

The product of its digits is 5832000, while the sum is 54.

The spelling of 145499525136 in words is "one hundred forty-five billion, four hundred ninety-nine million, five hundred twenty-five thousand, one hundred thirty-six".