145900419 has 16 divisors (see below), whose sum is σ = 227496192. Its totient is φ = 81432288.

The previous prime is 145900399. The next prime is 145900423. The reversal of 145900419 is 914009541.

It is not a de Polignac number, because 145900419 - 2⁵ = 145900387 is a prime.

It is a super-2 number, since 2×145900419² = 42573864528751122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145900419.

It is not an unprimeable number, because it can be changed into a prime (145900429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79884 + ... + 81689.

It is an arithmetic number, because the mean of its divisors is an integer number (14218512).

Almost surely, 2^145900419 is an apocalyptic number.

145900419 is a deficient number, since it is larger than the sum of its proper divisors (81595773).

145900419 is a wasteful number, since it uses less digits than its factorization.

145900419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161626.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 145900419 is about 12078.9245796139. The cubic root of 145900419 is about 526.4439992782.

The spelling of 145900419 in words is "one hundred forty-five million, nine hundred thousand, four hundred nineteen".