1098274157 has 4 divisors (see below), whose sum is σ = 1156078080. Its totient is φ = 1040470236.

The previous prime is 1098274147. The next prime is 1098274183. The reversal of 1098274157 is 7514728901.

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.

It is a cyclic number.

It is not a de Polignac number, because 1098274157 - 2⁴ = 1098274141 is a prime.

It is a super-2 number, since 2×1098274157² = 2412412247868121298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098274147) 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, 28901933 + ... + 28901970.

It is an arithmetic number, because the mean of its divisors is an integer number (289019520).

Almost surely, 2^1098274157 is an apocalyptic number.

It is an amenable number.

1098274157 is a deficient number, since it is larger than the sum of its proper divisors (57803923).

1098274157 is an equidigital number, since it uses as much as digits as its factorization.

1098274157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57803922.

The product of its (nonzero) digits is 141120, while the sum is 44.

The square root of 1098274157 is about 33140.2196281195. The cubic root of 1098274157 is about 1031.7399682000.

The spelling of 1098274157 in words is "one billion, ninety-eight million, two hundred seventy-four thousand, one hundred fifty-seven".