145706422 has 16 divisors (see below), whose sum is σ = 231826752. Its totient is φ = 68446080.

The previous prime is 145706419. The next prime is 145706443. The reversal of 145706422 is 224607541.

It is a super-2 number, since 2×145706422² = 42460722824084168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17347 + ... + 24337.

It is an arithmetic number, because the mean of its divisors is an integer number (14489172).

Almost surely, 2^145706422 is an apocalyptic number.

145706422 is a deficient number, since it is larger than the sum of its proper divisors (86120330).

145706422 is a wasteful number, since it uses less digits than its factorization.

145706422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7623.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 145706422 is about 12070.8915163711. The cubic root of 145706422 is about 526.2105664206.

The spelling of 145706422 in words is "one hundred forty-five million, seven hundred six thousand, four hundred twenty-two".