1201520253 has 8 divisors (see below), whose sum is σ = 1671680448. Its totient is φ = 766186784.

The previous prime is 1201520239. The next prime is 1201520263. The reversal of 1201520253 is 3520251021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1201520253 - 2⁸ = 1201519997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201520263) 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, 8706600 + ... + 8706737.

It is an arithmetic number, because the mean of its divisors is an integer number (208960056).

Almost surely, 2^1201520253 is an apocalyptic number.

It is an amenable number.

1201520253 is a deficient number, since it is larger than the sum of its proper divisors (470160195).

1201520253 is a wasteful number, since it uses less digits than its factorization.

1201520253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17413363.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1201520253 is about 34662.9521679848. The cubic root of 1201520253 is about 1063.1071325548.

Adding to 1201520253 its reverse (3520251021), we get a palindrome (4721771274).

The spelling of 1201520253 in words is "one billion, two hundred one million, five hundred twenty thousand, two hundred fifty-three".