145262540 has 12 divisors (see below), whose sum is σ = 305051376. Its totient is φ = 58105008.

The previous prime is 145262539. The next prime is 145262561. The reversal of 145262540 is 45262541.

It is a super-2 number, since 2×145262540² = 42202411054503200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3631544 + ... + 3631583.

It is an arithmetic number, because the mean of its divisors is an integer number (25420948).

Almost surely, 2^145262540 is an apocalyptic number.

145262540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145262540 is an abundant number, since it is smaller than the sum of its proper divisors (159788836).

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

145262540 is a wasteful number, since it uses less digits than its factorization.

145262540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7263136 (or 7263134 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 145262540 is about 12052.4910288289. The cubic root of 145262540 is about 525.6756712372.

Subtracting from 145262540 its reverse (45262541), we obtain a palindrome (99999999).

The spelling of 145262540 in words is "one hundred forty-five million, two hundred sixty-two thousand, five hundred forty".