1201513402 has 4 divisors (see below), whose sum is σ = 1802270106. Its totient is φ = 600756700.

The previous prime is 1201513387. The next prime is 1201513409. The reversal of 1201513402 is 2043151021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1140345361 + 61168041 = 33769^2 + 7821^2 .

It is a super-2 number, since 2×1201513402² = 2887268910371227208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1201513402.

It is not an unprimeable number, because it can be changed into a prime (1201513409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300378349 + ... + 300378352.

Almost surely, 2^1201513402 is an apocalyptic number.

1201513402 is a deficient number, since it is larger than the sum of its proper divisors (600756704).

1201513402 is an equidigital number, since it uses as much as digits as its factorization.

1201513402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600756703.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1201513402 is about 34662.8533447551. The cubic root of 1201513402 is about 1063.1051119589.

Adding to 1201513402 its reverse (2043151021), we get a palindrome (3244664423).

The spelling of 1201513402 in words is "one billion, two hundred one million, five hundred thirteen thousand, four hundred two".