1545423623 has 2 divisors, whose sum is σ = 1545423624. Its totient is φ = 1545423622.

The previous prime is 1545423617. The next prime is 1545423629. The reversal of 1545423623 is 3263245451.

It is a balanced prime because it is at equal distance from previous prime (1545423617) and next prime (1545423629).

It is a cyclic number.

It is not a de Polignac number, because 1545423623 - 2¹⁴ = 1545407239 is a prime.

It is a super-2 number, since 2×1545423623² = 4776668349052892258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1545423629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 772711811 + 772711812.

It is an arithmetic number, because the mean of its divisors is an integer number (772711812).

Almost surely, 2^1545423623 is an apocalyptic number.

1545423623 is a deficient number, since it is larger than the sum of its proper divisors (1).

1545423623 is an equidigital number, since it uses as much as digits as its factorization.

1545423623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 35.

The square root of 1545423623 is about 39311.8763607132. The cubic root of 1545423623 is about 1156.1544332877.

The spelling of 1545423623 in words is "one billion, five hundred forty-five million, four hundred twenty-three thousand, six hundred twenty-three".