1601535274 has 4 divisors (see below), whose sum is σ = 2402302914. Its totient is φ = 800767636.

The previous prime is 1601535263. The next prime is 1601535277. The reversal of 1601535274 is 4725351061.

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., 1044905625 + 556629649 = 32325^2 + 23593^2 .

It is not an unprimeable number, because it can be changed into a prime (1601535277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400383817 + ... + 400383820.

Almost surely, 2^1601535274 is an apocalyptic number.

1601535274 is a deficient number, since it is larger than the sum of its proper divisors (800767640).

1601535274 is an equidigital number, since it uses as much as digits as its factorization.

1601535274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800767639.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 1601535274 is about 40019.1863235624. The cubic root of 1601535274 is about 1169.9810730617.

The spelling of 1601535274 in words is "one billion, six hundred one million, five hundred thirty-five thousand, two hundred seventy-four".