1205025151 has 16 divisors (see below), whose sum is σ = 1344752640. Its totient is φ = 1070405280.

The previous prime is 1205025109. The next prime is 1205025233. The reversal of 1205025151 is 1515205021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1205025151 - 2¹³ = 1205016959 is a prime.

It is a super-2 number, since 2×1205025151² = 2904171229085145602, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205028151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 389830 + ... + 392908.

It is an arithmetic number, because the mean of its divisors is an integer number (84047040).

Almost surely, 2^1205025151 is an apocalyptic number.

1205025151 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1205025151 is a deficient number, since it is larger than the sum of its proper divisors (139727489).

1205025151 is a wasteful number, since it uses less digits than its factorization.

1205025151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3894.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 1205025151 is about 34713.4721830012. The cubic root of 1205025151 is about 1064.1398422557.

The spelling of 1205025151 in words is "one billion, two hundred five million, twenty-five thousand, one hundred fifty-one".