145156537 has 2 divisors, whose sum is σ = 145156538. Its totient is φ = 145156536.

The previous prime is 145156511. The next prime is 145156541. The reversal of 145156537 is 735651541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143137296 + 2019241 = 11964^2 + 1421^2 .

It is an emirp because it is prime and its reverse (735651541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145156537 - 2²³ = 136767929 is a prime.

It is equal to p_8186923 and since 145156537 and 8186923 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 145156496 and 145156505.

It is not a weakly prime, because it can be changed into another prime (145156547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72578268 + 72578269.

It is an arithmetic number, because the mean of its divisors is an integer number (72578269).

Almost surely, 2^145156537 is an apocalyptic number.

It is an amenable number.

145156537 is a deficient number, since it is larger than the sum of its proper divisors (1).

145156537 is an equidigital number, since it uses as much as digits as its factorization.

145156537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63000, while the sum is 37.

The square root of 145156537 is about 12048.0926706263. The cubic root of 145156537 is about 525.5477723353.

The spelling of 145156537 in words is "one hundred forty-five million, one hundred fifty-six thousand, five hundred thirty-seven".