145101520 has 40 divisors (see below), whose sum is σ = 338397984. Its totient is φ = 57862272.

The previous prime is 145101497. The next prime is 145101527. The reversal of 145101520 is 25101541.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×145101520² = 42108902212620800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145101527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25147 + ... + 30373.

Almost surely, 2^145101520 is an apocalyptic number.

145101520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145101520 is an abundant number, since it is smaller than the sum of its proper divisors (193296464).

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

145101520 is a wasteful number, since it uses less digits than its factorization.

145101520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5587 (or 5581 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 145101520 is about 12045.8092297695. The cubic root of 145101520 is about 525.4813665177.

The spelling of 145101520 in words is "one hundred forty-five million, one hundred one thousand, five hundred twenty".