145902937 has 2 divisors, whose sum is σ = 145902938. Its totient is φ = 145902936.

The previous prime is 145902901. The next prime is 145902943. The reversal of 145902937 is 739209541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139806976 + 6095961 = 11824^2 + 2469^2 .

It is a cyclic number.

It is not a de Polignac number, because 145902937 - 2²³ = 137514329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145902937.

It is not a weakly prime, because it can be changed into another prime (145902947) 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 as a sum of consecutive naturals, namely, 72951468 + 72951469.

It is an arithmetic number, because the mean of its divisors is an integer number (72951469).

Almost surely, 2^145902937 is an apocalyptic number.

It is an amenable number.

145902937 is a deficient number, since it is larger than the sum of its proper divisors (1).

145902937 is an equidigital number, since it uses as much as digits as its factorization.

145902937 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 145902937 is about 12079.0288102976. The cubic root of 145902937 is about 526.4470277784.

The spelling of 145902937 in words is "one hundred forty-five million, nine hundred two thousand, nine hundred thirty-seven".