1201252015 has 16 divisors (see below), whose sum is σ = 1489188096. Its totient is φ = 929260800.

The previous prime is 1201251983. The next prime is 1201252021. The reversal of 1201252015 is 5102521021.

It is not a de Polignac number, because 1201252015 - 2⁵ = 1201251983 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201251983 and 1201252001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269505 + ... + 273925.

It is an arithmetic number, because the mean of its divisors is an integer number (93074256).

Almost surely, 2^1201252015 is an apocalyptic number.

1201252015 is a deficient number, since it is larger than the sum of its proper divisors (287936081).

1201252015 is a wasteful number, since it uses less digits than its factorization.

1201252015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6210.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 1201252015 is about 34659.0827201183. The cubic root of 1201252015 is about 1063.0280141896.

Adding to 1201252015 its reverse (5102521021), we get a palindrome (6303773036).

The spelling of 1201252015 in words is "one billion, two hundred one million, two hundred fifty-two thousand, fifteen".