145657488 has 40 divisors (see below), whose sum is σ = 389260800. Its totient is φ = 46877824.

The previous prime is 145657481. The next prime is 145657537. The reversal of 145657488 is 884756541.

It is a super-2 number, since 2×145657488² = 42432207620940288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (145657481) 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, 50928 + ... + 53711.

It is an arithmetic number, because the mean of its divisors is an integer number (9731520).

Almost surely, 2^145657488 is an apocalyptic number.

It is an amenable number.

145657488 is an abundant number, since it is smaller than the sum of its proper divisors (243603312).

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

145657488 is a wasteful number, since it uses less digits than its factorization.

145657488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104679 (or 104673 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 48.

The square root of 145657488 is about 12068.8644039114. The cubic root of 145657488 is about 526.1516523599.

The spelling of 145657488 in words is "one hundred forty-five million, six hundred fifty-seven thousand, four hundred eighty-eight".