145423967 has 32 divisors (see below), whose sum is σ = 177811200. Its totient is φ = 117462528.

The previous prime is 145423961. The next prime is 145423981. The reversal of 145423967 is 769324541.

It is a cyclic number.

It is not a de Polignac number, because 145423967 - 2⁶ = 145423903 is a prime.

It is a super-2 number, since 2×145423967² = 42296260356034178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145423961) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 247448 + ... + 248034.

It is an arithmetic number, because the mean of its divisors is an integer number (5556600).

Almost surely, 2^145423967 is an apocalyptic number.

145423967 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

145423967 is a deficient number, since it is larger than the sum of its proper divisors (32387233).

145423967 is a wasteful number, since it uses less digits than its factorization.

145423967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695.

The product of its digits is 181440, while the sum is 41.

The square root of 145423967 is about 12059.1860007216. The cubic root of 145423967 is about 525.8703230088.

The spelling of 145423967 in words is "one hundred forty-five million, four hundred twenty-three thousand, nine hundred sixty-seven".