2061257146 has 32 divisors (see below), whose sum is σ = 3443037696. Its totient is φ = 919080000.

The previous prime is 2061257131. The next prime is 2061257147. The reversal of 2061257146 is 6417521602.

It is not an unprimeable number, because it can be changed into a prime (2061257147) 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, 555096 + ... + 558796.

It is an arithmetic number, because the mean of its divisors is an integer number (107594928).

Almost surely, 2^2061257146 is an apocalyptic number.

2061257146 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2061257146 is a deficient number, since it is larger than the sum of its proper divisors (1381780550).

2061257146 is a wasteful number, since it uses less digits than its factorization.

2061257146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4438.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 2061257146 is about 45401.0698772617. The cubic root of 2061257146 is about 1272.6551074305.

Adding to 2061257146 its reverse (6417521602), we get a palindrome (8478778748).

The spelling of 2061257146 in words is "two billion, sixty-one million, two hundred fifty-seven thousand, one hundred forty-six".