1019974357 has 4 divisors (see below), whose sum is σ = 1020195040. Its totient is φ = 1019753676.

The previous prime is 1019974349. The next prime is 1019974363. The reversal of 1019974357 is 7534799101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7534799101 = 71 ⋅106123931.

It is a cyclic number.

It is not a de Polignac number, because 1019974357 - 2³ = 1019974349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1019974337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103257 + ... + 112702.

It is an arithmetic number, because the mean of its divisors is an integer number (255048760).

Almost surely, 2^1019974357 is an apocalyptic number.

It is an amenable number.

1019974357 is a deficient number, since it is larger than the sum of its proper divisors (220683).

1019974357 is an equidigital number, since it uses as much as digits as its factorization.

1019974357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220682.

The product of its (nonzero) digits is 238140, while the sum is 46.

The square root of 1019974357 is about 31937.0373860820. The cubic root of 1019974357 is about 1006.6142739253.

The spelling of 1019974357 in words is "one billion, nineteen million, nine hundred seventy-four thousand, three hundred fifty-seven".