997149134 has 8 divisors (see below), whose sum is σ = 1516790448. Its totient is φ = 491552320.

The previous prime is 997149073. The next prime is 997149163. The reversal of 997149134 is 431941799.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3510947 + ... + 3511230.

It is an arithmetic number, because the mean of its divisors is an integer number (189598806).

Almost surely, 2^997149134 is an apocalyptic number.

997149134 is a deficient number, since it is larger than the sum of its proper divisors (519641314).

997149134 is a wasteful number, since it uses less digits than its factorization.

997149134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7022250.

The product of its digits is 244944, while the sum is 47.

The square root of 997149134 is about 31577.6682799728. The cubic root of 997149134 is about 999.0488068518.

The spelling of 997149134 in words is "nine hundred ninety-seven million, one hundred forty-nine thousand, one hundred thirty-four".