1197555402 has 16 divisors (see below), whose sum is σ = 2400034752. Its totient is φ = 398364480.

The previous prime is 1197555397. The next prime is 1197555407. The reversal of 1197555402 is 2045557911.

1197555402 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1197555397) and next prime (1197555407).

It is not an unprimeable number, because it can be changed into a prime (1197555407) 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, 201999 + ... + 207842.

It is an arithmetic number, because the mean of its divisors is an integer number (150002172).

Almost surely, 2^1197555402 is an apocalyptic number.

1197555402 is an abundant number, since it is smaller than the sum of its proper divisors (1202479350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1197555402 is a wasteful number, since it uses less digits than its factorization.

1197555402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410333.

The product of its (nonzero) digits is 63000, while the sum is 39.

The square root of 1197555402 is about 34605.7134300104. The cubic root of 1197555402 is about 1061.9364750040.

The spelling of 1197555402 in words is "one billion, one hundred ninety-seven million, five hundred fifty-five thousand, four hundred two".