245620951 has 4 divisors (see below), whose sum is σ = 247127992. Its totient is φ = 244113912.

The previous prime is 245620943. The next prime is 245620993. The reversal of 245620951 is 159026542.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 245620951 - 2³ = 245620943 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 (245620931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 753276 + ... + 753601.

It is an arithmetic number, because the mean of its divisors is an integer number (61781998).

Almost surely, 2^245620951 is an apocalyptic number.

245620951 is a deficient number, since it is larger than the sum of its proper divisors (1507041).

245620951 is a wasteful number, since it uses less digits than its factorization.

245620951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507040.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 245620951 is about 15672.2988422248. The cubic root of 245620951 is about 626.2606669604.

The spelling of 245620951 in words is "two hundred forty-five million, six hundred twenty thousand, nine hundred fifty-one".