1353921974 has 4 divisors (see below), whose sum is σ = 2030882964. Its totient is φ = 676960986.

The previous prime is 1353921949. The next prime is 1353921983. The reversal of 1353921974 is 4791293531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4791293531 = 57787 ⋅82913.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338480492 + ... + 338480495.

It is an arithmetic number, because the mean of its divisors is an integer number (507720741).

Almost surely, 2^1353921974 is an apocalyptic number.

1353921974 is a deficient number, since it is larger than the sum of its proper divisors (676960990).

1353921974 is an equidigital number, since it uses as much as digits as its factorization.

1353921974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676960989.

The product of its digits is 204120, while the sum is 44.

The square root of 1353921974 is about 36795.6787408522. The cubic root of 1353921974 is about 1106.2786871001.

The spelling of 1353921974 in words is "one billion, three hundred fifty-three million, nine hundred twenty-one thousand, nine hundred seventy-four".