145357451 has 2 divisors, whose sum is σ = 145357452. Its totient is φ = 145357450.

The previous prime is 145357441. The next prime is 145357489. The reversal of 145357451 is 154753541.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145357451 - 2²² = 141163147 is a prime.

It is a super-2 number, since 2×145357451² = 42257577122434802, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (145357441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72678725 + 72678726.

It is an arithmetic number, because the mean of its divisors is an integer number (72678726).

Almost surely, 2^145357451 is an apocalyptic number.

145357451 is a deficient number, since it is larger than the sum of its proper divisors (1).

145357451 is an equidigital number, since it uses as much as digits as its factorization.

145357451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42000, while the sum is 35.

The square root of 145357451 is about 12056.4277876990. The cubic root of 145357451 is about 525.7901341983.

The spelling of 145357451 in words is "one hundred forty-five million, three hundred fifty-seven thousand, four hundred fifty-one".