1189102397 has 32 divisors (see below), whose sum is σ = 1415577600. Its totient is φ = 977901120.

The previous prime is 1189102367. The next prime is 1189102427. The reversal of 1189102397 is 7932019811.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1189102367) and next prime (1189102427).

It is not a de Polignac number, because 1189102397 - 2²² = 1184908093 is a prime.

It is a super-2 number, since 2×1189102397² = 2827929021102291218, 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 (1189102357) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6225572 + ... + 6225762.

It is an arithmetic number, because the mean of its divisors is an integer number (44236800).

Almost surely, 2^1189102397 is an apocalyptic number.

It is an amenable number.

1189102397 is a deficient number, since it is larger than the sum of its proper divisors (226475203).

1189102397 is a wasteful number, since it uses less digits than its factorization.

1189102397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521.

The product of its (nonzero) digits is 27216, while the sum is 41.

The square root of 1189102397 is about 34483.3640615297. The cubic root of 1189102397 is about 1059.4319957350.

The spelling of 1189102397 in words is "one billion, one hundred eighty-nine million, one hundred two thousand, three hundred ninety-seven".