145379451 has 16 divisors (see below), whose sum is σ = 222421248. Its totient is φ = 82740000.

The previous prime is 145379419. The next prime is 145379471. The reversal of 145379451 is 154973541.

It is not a de Polignac number, because 145379451 - 2⁵ = 145379419 is a prime.

It is a super-2 number, since 2×145379451² = 42270369546122802, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145379411) 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 in 15 ways as a sum of consecutive naturals, for example, 8520 + ... + 19061.

It is an arithmetic number, because the mean of its divisors is an integer number (13901328).

Almost surely, 2^145379451 is an apocalyptic number.

145379451 is a deficient number, since it is larger than the sum of its proper divisors (77041797).

145379451 is a wasteful number, since it uses less digits than its factorization.

145379451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27842.

The product of its digits is 75600, while the sum is 39.

The square root of 145379451 is about 12057.3401295642. The cubic root of 145379451 is about 525.8166591530.

The spelling of 145379451 in words is "one hundred forty-five million, three hundred seventy-nine thousand, four hundred fifty-one".