119649897 has 24 divisors (see below), whose sum is σ = 186850560. Its totient is φ = 73522080.

The previous prime is 119649883. The next prime is 119649899. The reversal of 119649897 is 798946911.

It is not a de Polignac number, because 119649897 - 2⁷ = 119649769 is a prime.

It is a super-2 number, since 2×119649897² = 28632195704221218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (119649899) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3129 + ... + 15782.

It is an arithmetic number, because the mean of its divisors is an integer number (7785440).

Almost surely, 2^119649897 is an apocalyptic number.

It is an amenable number.

119649897 is a deficient number, since it is larger than the sum of its proper divisors (67200663).

119649897 is a wasteful number, since it uses less digits than its factorization.

119649897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18973 (or 18970 counting only the distinct ones).

The product of its digits is 979776, while the sum is 54.

The square root of 119649897 is about 10938.4595350534. The cubic root of 119649897 is about 492.7622652546.

The spelling of 119649897 in words is "one hundred nineteen million, six hundred forty-nine thousand, eight hundred ninety-seven".