1157073479 has 2 divisors, whose sum is σ = 1157073480. Its totient is φ = 1157073478.

The previous prime is 1157073461. The next prime is 1157073529. The reversal of 1157073479 is 9743707511.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1157073479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1157073409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578536739 + 578536740.

It is an arithmetic number, because the mean of its divisors is an integer number (578536740).

Almost surely, 2^1157073479 is an apocalyptic number.

1157073479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1157073479 is an equidigital number, since it uses as much as digits as its factorization.

1157073479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 185220, while the sum is 44.

The square root of 1157073479 is about 34015.7827926979. The cubic root of 1157073479 is about 1049.8332249103.

The spelling of 1157073479 in words is "one billion, one hundred fifty-seven million, seventy-three thousand, four hundred seventy-nine".