146526431 has 2 divisors, whose sum is σ = 146526432. Its totient is φ = 146526430.

The previous prime is 146526427. The next prime is 146526437. The reversal of 146526431 is 134625641.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 146526431 - 2² = 146526427 is a prime.

It is a super-2 number, since 2×146526431² = 42939989963195522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146526437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73263215 + 73263216.

It is an arithmetic number, because the mean of its divisors is an integer number (73263216).

Almost surely, 2^146526431 is an apocalyptic number.

146526431 is a deficient number, since it is larger than the sum of its proper divisors (1).

146526431 is an equidigital number, since it uses as much as digits as its factorization.

146526431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 32.

The square root of 146526431 is about 12104.8102422136. The cubic root of 146526431 is about 527.1958592057.

The spelling of 146526431 in words is "one hundred forty-six million, five hundred twenty-six thousand, four hundred thirty-one".