145404051 has 20 divisors (see below), whose sum is σ = 210151272. Its totient is φ = 89426688.

The previous prime is 145404037. The next prime is 145404073. The reversal of 145404051 is 150404541.

It is a happy number.

It is not a de Polignac number, because 145404051 - 2⁵ = 145404019 is a prime.

It is a super-2 number, since 2×145404051² = 42284676094421202, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145404001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 84835 + ... + 86531.

Almost surely, 2^145404051 is an apocalyptic number.

145404051 is a deficient number, since it is larger than the sum of its proper divisors (64747221).

145404051 is an frugal number, since it uses more digits than its factorization.

145404051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752 (or 1713 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 145404051 is about 12058.3602119028. The cubic root of 145404051 is about 525.8463157063.

Adding to 145404051 its reverse (150404541), we get a palindrome (295808592).

The spelling of 145404051 in words is "one hundred forty-five million, four hundred four thousand, fifty-one".