1601253674 has 4 divisors (see below), whose sum is σ = 2401880514. Its totient is φ = 800626836.

The previous prime is 1601253673. The next prime is 1601253691. The reversal of 1601253674 is 4763521061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4763521061 = 13 ⋅366424697.

It can be written as a sum of positive squares in only one way, i.e., 1079451025 + 521802649 = 32855^2 + 22843^2 .

It is not an unprimeable number, because it can be changed into a prime (1601253673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400313417 + ... + 400313420.

Almost surely, 2^1601253674 is an apocalyptic number.

1601253674 is a deficient number, since it is larger than the sum of its proper divisors (800626840).

1601253674 is an equidigital number, since it uses as much as digits as its factorization.

1601253674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800626839.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 1601253674 is about 40015.6678564784. The cubic root of 1601253674 is about 1169.9124959517.

The spelling of 1601253674 in words is "one billion, six hundred one million, two hundred fifty-three thousand, six hundred seventy-four".