245401549 has 16 divisors (see below), whose sum is σ = 267604480. Its totient is φ = 224182080.

The previous prime is 245401493. The next prime is 245401573. The reversal of 245401549 is 945104542.

245401549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 245401549 - 2¹⁷ = 245270477 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 (245401589) 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, 219139 + ... + 220255.

It is an arithmetic number, because the mean of its divisors is an integer number (16725280).

Almost surely, 2^245401549 is an apocalyptic number.

It is an amenable number.

245401549 is a deficient number, since it is larger than the sum of its proper divisors (22202931).

245401549 is a wasteful number, since it uses less digits than its factorization.

245401549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 245401549 is about 15665.2976033014. The cubic root of 245401549 is about 626.0741413749.

The spelling of 245401549 in words is "two hundred forty-five million, four hundred one thousand, five hundred forty-nine".