145292525 has 48 divisors (see below), whose sum is σ = 222783360. Its totient is φ = 91756800.

The previous prime is 145292519. The next prime is 145292527. The reversal of 145292525 is 525292541.

It is not a de Polignac number, because 145292525 - 2⁶ = 145292461 is a prime.

It is a super-2 number, since 2×145292525² = 42219835641751250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an alternating number because its digits alternate between odd and even.

It is a plaindrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145292527) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 122435 + ... + 123615.

It is an arithmetic number, because the mean of its divisors is an integer number (4641320).

Almost surely, 2^145292525 is an apocalyptic number.

145292525 is the 9842-nd pentagonal number.

It is an amenable number.

145292525 is a deficient number, since it is larger than the sum of its proper divisors (77490835).

145292525 is a wasteful number, since it uses less digits than its factorization.

145292525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254 (or 1249 counting only the distinct ones).

The product of its digits is 36000, while the sum is 35.

The square root of 145292525 is about 12053.7348983624. The cubic root of 145292525 is about 525.7118386266.

The spelling of 145292525 in words is "one hundred forty-five million, two hundred ninety-two thousand, five hundred twenty-five".