145737816 has 32 divisors (see below), whose sum is σ = 416394240. Its totient is φ = 41639328.

The previous prime is 145737799. The next prime is 145737817. The reversal of 145737816 is 618737541.

It is a super-2 number, since 2×145737816² = 42479022024899712, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145737817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433576 + ... + 433911.

It is an arithmetic number, because the mean of its divisors is an integer number (13012320).

Almost surely, 2^145737816 is an apocalyptic number.

It is an amenable number.

145737816 is an abundant number, since it is smaller than the sum of its proper divisors (270656424).

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

145737816 is a wasteful number, since it uses less digits than its factorization.

145737816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867503 (or 867499 counting only the distinct ones).

The product of its digits is 141120, while the sum is 42.

The square root of 145737816 is about 12072.1918473821. The cubic root of 145737816 is about 526.2483562631.

The spelling of 145737816 in words is "one hundred forty-five million, seven hundred thirty-seven thousand, eight hundred sixteen".