1201840497 has 160 divisors (see below), whose sum is σ = 2289745920. Its totient is φ = 617258880.

The previous prime is 1201840487. The next prime is 1201840499. The reversal of 1201840497 is 7940481021.

1201840497 is a `hidden beast` number, since 120 + 1 + 8 + 40 + 497 = 666.

It is not a de Polignac number, because 1201840497 - 2⁶ = 1201840433 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1201840499) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 9463248 + ... + 9463374.

It is an arithmetic number, because the mean of its divisors is an integer number (14310912).

Almost surely, 2^1201840497 is an apocalyptic number.

It is an amenable number.

1201840497 is a deficient number, since it is larger than the sum of its proper divisors (1087905423).

1201840497 is a wasteful number, since it uses less digits than its factorization.

1201840497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 1201840497 is about 34667.5712590311. The cubic root of 1201840497 is about 1063.2015749738.

The spelling of 1201840497 in words is "one billion, two hundred one million, eight hundred forty thousand, four hundred ninety-seven".