1523672261 has 2 divisors, whose sum is σ = 1523672262. Its totient is φ = 1523672260.

The previous prime is 1523672231. The next prime is 1523672291. The reversal of 1523672261 is 1622763251.

It is a balanced prime because it is at equal distance from previous prime (1523672231) and next prime (1523672291).

It can be written as a sum of positive squares in only one way, i.e., 1234468225 + 289204036 = 35135^2 + 17006^2 .

It is an emirp because it is prime and its reverse (1622763251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1523672261 - 2¹⁴ = 1523655877 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1523672231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 761836130 + 761836131.

It is an arithmetic number, because the mean of its divisors is an integer number (761836131).

Almost surely, 2^1523672261 is an apocalyptic number.

It is an amenable number.

1523672261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1523672261 is an equidigital number, since it uses as much as digits as its factorization.

1523672261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 35.

The square root of 1523672261 is about 39034.2447217824. The cubic root of 1523672261 is about 1150.7046119222.

The spelling of 1523672261 in words is "one billion, five hundred twenty-three million, six hundred seventy-two thousand, two hundred sixty-one".