245331551 has 8 divisors (see below), whose sum is σ = 253638144. Its totient is φ = 237049560.

The previous prime is 245331533. The next prime is 245331589. The reversal of 245331551 is 155133542.

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

It is not a de Polignac number, because 245331551 - 2¹⁴ = 245315167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245331511) 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, 15380 + ... + 26966.

It is an arithmetic number, because the mean of its divisors is an integer number (31704768).

Almost surely, 2^245331551 is an apocalyptic number.

245331551 is a deficient number, since it is larger than the sum of its proper divisors (8306593).

245331551 is a wasteful number, since it uses less digits than its factorization.

245331551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12301.

The product of its digits is 9000, while the sum is 29.

The square root of 245331551 is about 15663.0632699993. The cubic root of 245331551 is about 626.0146088722.

The spelling of 245331551 in words is "two hundred forty-five million, three hundred thirty-one thousand, five hundred fifty-one".