655142943 has 16 divisors (see below), whose sum is σ = 1075106816. Its totient is φ = 345569760.

The previous prime is 655142941. The next prime is 655142963. The reversal of 655142943 is 349241556.

It is not a de Polignac number, because 655142943 - 2¹ = 655142941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655142941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1199623 + ... + 1200168.

It is an arithmetic number, because the mean of its divisors is an integer number (67194176).

Almost surely, 2^655142943 is an apocalyptic number.

655142943 is a deficient number, since it is larger than the sum of its proper divisors (419963873).

655142943 is a wasteful number, since it uses less digits than its factorization.

655142943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2399814.

The product of its digits is 129600, while the sum is 39.

The square root of 655142943 is about 25595.7602543859. The cubic root of 655142943 is about 868.5177309948.

It can be divided in two parts, 655142 and 943, that added together give a triangular number (656085 = T₁₁₄₅).

The spelling of 655142943 in words is "six hundred fifty-five million, one hundred forty-two thousand, nine hundred forty-three".