142505674 has 4 divisors (see below), whose sum is σ = 213758514. Its totient is φ = 71252836.

The previous prime is 142505641. The next prime is 142505683. The reversal of 142505674 is 476505241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 103530625 + 38975049 = 10175^2 + 6243^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35626417 + ... + 35626420.

Almost surely, 2^142505674 is an apocalyptic number.

142505674 is a deficient number, since it is larger than the sum of its proper divisors (71252840).

142505674 is an equidigital number, since it uses as much as digits as its factorization.

142505674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71252839.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 142505674 is about 11937.5740416552. The cubic root of 142505674 is about 522.3288958450.

The spelling of 142505674 in words is "one hundred forty-two million, five hundred five thousand, six hundred seventy-four".