145937431 has 2 divisors, whose sum is σ = 145937432. Its totient is φ = 145937430.

The previous prime is 145937419. The next prime is 145937471. The reversal of 145937431 is 134739541.

It is a weak prime.

It is an emirp because it is prime and its reverse (134739541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145937431 - 2¹³ = 145929239 is a prime.

It is a super-2 number, since 2×145937431² = 42595467533759522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145937471) 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, 72968715 + 72968716.

It is an arithmetic number, because the mean of its divisors is an integer number (72968716).

Almost surely, 2^145937431 is an apocalyptic number.

145937431 is a deficient number, since it is larger than the sum of its proper divisors (1).

145937431 is an equidigital number, since it uses as much as digits as its factorization.

145937431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 37.

The square root of 145937431 is about 12080.4565724976. The cubic root of 145937431 is about 526.4885115970.

The spelling of 145937431 in words is "one hundred forty-five million, nine hundred thirty-seven thousand, four hundred thirty-one".