121949597 has 8 divisors (see below), whose sum is σ = 152041152. Its totient is φ = 95025600.

The previous prime is 121949587. The next prime is 121949623. The reversal of 121949597 is 795949121.

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

It is a cyclic number.

It is not a de Polignac number, because 121949597 - 2⁶ = 121949533 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 (121949507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 791804 + ... + 791957.

It is an arithmetic number, because the mean of its divisors is an integer number (19005144).

Almost surely, 2^121949597 is an apocalyptic number.

It is an amenable number.

121949597 is a deficient number, since it is larger than the sum of its proper divisors (30091555).

121949597 is a wasteful number, since it uses less digits than its factorization.

121949597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583779.

The product of its digits is 204120, while the sum is 47.

The square root of 121949597 is about 11043.0791448762. The cubic root of 121949597 is about 495.8992557377.

The spelling of 121949597 in words is "one hundred twenty-one million, nine hundred forty-nine thousand, five hundred ninety-seven".