1374651431 has 4 divisors (see below), whose sum is σ = 1375033032. Its totient is φ = 1374269832.

The previous prime is 1374651401. The next prime is 1374651451. The reversal of 1374651431 is 1341564731.

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

It is a cyclic number.

It is not a de Polignac number, because 1374651431 - 2⁶ = 1374651367 is a prime.

It is a super-2 number, since 2×1374651431² = 3779333113500695522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1374651391 and 1374651400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1374651401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185345 + ... + 192618.

It is an arithmetic number, because the mean of its divisors is an integer number (343758258).

Almost surely, 2^1374651431 is an apocalyptic number.

1374651431 is a deficient number, since it is larger than the sum of its proper divisors (381601).

1374651431 is an equidigital number, since it uses as much as digits as its factorization.

1374651431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381600.

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

The square root of 1374651431 is about 37076.2920341288. The cubic root of 1374651431 is about 1111.8960724323.

The spelling of 1374651431 in words is "one billion, three hundred seventy-four million, six hundred fifty-one thousand, four hundred thirty-one".